SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 42 ›› Issue (2): 73-81.DOI: 10.1016/j.cjche.2021.09.025

• Recent Advances in Adsorptive Separation Materials and Technologies • 上一篇    下一篇

Sustainable preparation of graphene-analogue boron nitride by ball-milling for adsorption of organic pollutants

Haofeng Wu1, Yanhong Chao1, Yan Jin1, Duanjian Tao2, Xiaowei Li3, Jing Luo3, Guohua Xia1, Linhua Zhu4, Wenshuai Zhu3   

  1. 1. School of Pharmacy, Jiangsu University, Zhenjiang 212013, China;
    2. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China;
    3. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;
    4. Key Laboratory of Tropical Medicinal Plant Chemistry of Education, Hainan Normal University, Haikou 571158, China
  • 收稿日期:2021-05-31 修回日期:2021-09-28 出版日期:2022-02-28 发布日期:2022-03-30
  • 通讯作者: Yanhong Chao,E-mail:chaoyh@ujs.edu.cn;Wenshuai Zhu,E-mail:zhuws@ujs.edu.cn
  • 基金资助:
    This work was financially supported by the National Natural Science Foundation of China (21878133 and 21722604) and Advanced Talents of Jiangsu University (15JDG176).

Sustainable preparation of graphene-analogue boron nitride by ball-milling for adsorption of organic pollutants

Haofeng Wu1, Yanhong Chao1, Yan Jin1, Duanjian Tao2, Xiaowei Li3, Jing Luo3, Guohua Xia1, Linhua Zhu4, Wenshuai Zhu3   

  1. 1. School of Pharmacy, Jiangsu University, Zhenjiang 212013, China;
    2. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China;
    3. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;
    4. Key Laboratory of Tropical Medicinal Plant Chemistry of Education, Hainan Normal University, Haikou 571158, China
  • Received:2021-05-31 Revised:2021-09-28 Online:2022-02-28 Published:2022-03-30
  • Contact: Yanhong Chao,E-mail:chaoyh@ujs.edu.cn;Wenshuai Zhu,E-mail:zhuws@ujs.edu.cn
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (21878133 and 21722604) and Advanced Talents of Jiangsu University (15JDG176).

摘要: The method of fabricating low-cost adsorbents with high activity and durability via a convenient and eco-friendly procedure is of great importance to wastewater treatment. Herein, a high-efficient mechanical exfoliation strategy was proposed to facilely prepare few-layered graphene-analogue boron nitride (BN) via a one-step non-organic solvent assisted wet ball mill procedure. Ball-milling treatment increased the specific surface area of BN 3.5-fold by reducing the thickness to ~3 layers with 45 min. The exfoliated BN exhibited strikingly improved sorption performance to organic contaminants with around 124% and 116% increased removal efficiency respectively for oxytetracycline (OTC) and Rhodamine B (RhB) as compared to the bulk BN. Batches sorption experiments showed that the sorption processes were thermodynamic endothermic, and well fitted to pseudo-second-order kinetic model and Freundlich isotherm equation. The π-π stacking interaction, hydrophobic effect and electrostatic interaction were proposed as the dominated sorption mechanism. In addition, no significant decline in adsorptive removal ability for the sorbent after 5 times recycling. The results indicate that the ball-milling exfoliation is a fast, green, sustainable and promising strategy for synthesis of highly potent BN based two-dimensional layered adsorbents.

关键词: Boron nitride, Ball mill, Exfoliation, Adsorption, Water treatment

Abstract: The method of fabricating low-cost adsorbents with high activity and durability via a convenient and eco-friendly procedure is of great importance to wastewater treatment. Herein, a high-efficient mechanical exfoliation strategy was proposed to facilely prepare few-layered graphene-analogue boron nitride (BN) via a one-step non-organic solvent assisted wet ball mill procedure. Ball-milling treatment increased the specific surface area of BN 3.5-fold by reducing the thickness to ~3 layers with 45 min. The exfoliated BN exhibited strikingly improved sorption performance to organic contaminants with around 124% and 116% increased removal efficiency respectively for oxytetracycline (OTC) and Rhodamine B (RhB) as compared to the bulk BN. Batches sorption experiments showed that the sorption processes were thermodynamic endothermic, and well fitted to pseudo-second-order kinetic model and Freundlich isotherm equation. The π-π stacking interaction, hydrophobic effect and electrostatic interaction were proposed as the dominated sorption mechanism. In addition, no significant decline in adsorptive removal ability for the sorbent after 5 times recycling. The results indicate that the ball-milling exfoliation is a fast, green, sustainable and promising strategy for synthesis of highly potent BN based two-dimensional layered adsorbents.

Key words: Boron nitride, Ball mill, Exfoliation, Adsorption, Water treatment